

;.oi MONOECIA.— POLYANDRIA. 



HAB. Swampy elevated forests. Tree 60—70 ft, 

 high. 

 51. Q. montana : leaves on petioles of middling length, 

 broad-obovate, oblong, white-tomentose beneath, 

 shining above, coarsely toothed, obtuse and une- 

 qual at the base ; teeth subequal, very obtuse ; 

 fruit in pairs, on short peduncles ; cup hemisphe- 

 rical ; scales tuberculate and rugose ; acorn ovate. 

 HAB. Rocky woods and mountain sides. A large 

 tree ; fr. middle sized. 



22. Q. castanea : leaves on long peduncles, oblong- 

 lanceolate, obtuse at the base, acuminate, tomen- 

 tose beneath, coarsely toothed ; teeth subequal. 

 dilated, obtuse ; cup hemispherical ; acorn ovate - 

 subglobose. 



HAB. Rocky and mountain woods. A large tree , 

 fr. on short pedunc. 



23. Q. Chinquapin : leaves on short petioles, obovate, 



acute at the base, coarsely toothed, glaucous be- 

 neath ; teeth subequal, dilated, callous at the tip ; 

 cup hemispherical ; acorn ovate. 

 HAB. Barren woods. Ashruho — 4 ft. high; acorns 

 small j numerous. 



551. CORYLUS. Hazel-nut. Corylacece. 



1. C. americana: leaves roundish, cordate, acuminate ; 



involucrum roundish-campanulate, larger than the 

 subglobose nut, border dilated, coarsely serrate. 

 HAB. Fields and woods. April. A shrub 3—5 ft. 

 high : nuts large, edible. 



2. C. rostrata : leaves oblong-ovate, acuminate ; sti- 



pules linear-lanceolate ; involucrum campanulate- 

 tubular, longer than the nut, two. parted, with 

 dentate segments. 

 HAB. Rocky woods. May. A shrub 2— 3 ft. high ; 

 involuc. with a long rostrum. 



552. FAGUS. Beech. Corylaceaz. 



F. ferruginea; leaves ovate-oblong, acuminate, pu- 

 " bescent beneath, ciliate on the margin, coarsely 

 toothed, obtuse at the base and unequally sub- 

 cordate ; nut ovate, acutely triangular, very acute. 



